Other grades of this product :
| Dimethyl oxalate Basic information |
| Dimethyl oxalate Chemical Properties |
| Melting point | 50-54 °C (lit.) | | Boiling point | 163.5 °C (lit.) | | density | 1.148 g/mL at 25 °C (lit.) | | vapor pressure | 3 hPa (20 °C) | | refractive index | n20/D 1.39(lit.) | | Fp | 167 °F | | storage temp. | Store below +30°C. | | solubility | ethanol: soluble50mg/mL, clear to very slightly hazy, colorless | | form | Crystalline Solid | | color | Colorless to white | | Specific Gravity | 1.148 | | PH | 1 (60g/l, H2O, 20℃) | | Water Solubility | 60 G/L (25 ºC) | | Merck | 14,6106 | | BRN | 1071744 | | Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, acids, bases, reducing agents. | | InChIKey | LOMVENUNSWAXEN-UHFFFAOYSA-N | | CAS DataBase Reference | 553-90-2(CAS DataBase Reference) | | NIST Chemistry Reference | Ethanedioic acid, dimethyl ester(553-90-2) | | EPA Substance Registry System | Ethanedioic acid, dimethyl ester (553-90-2) |
| Hazard Codes | Xi,Xn | | Risk Statements | 36/38-36-22 | | Safety Statements | 26-36/37-24/25-23 | | RIDADR | 1759 | | WGK Germany | 3 | | RTECS | RO2850000 | | Autoignition Temperature | 480 °C | | TSCA | Yes | | HS Code | 2917 11 00 | | HazardClass | 6.1(b) | | PackingGroup | III |
| Dimethyl oxalate Usage And Synthesis |
| Description | Dimethyl oxalate is a chemical compound with formula (CH3)2(COO)2. It is the dimethyl ester of oxalic acid. | | Chemical Properties | The empirical formula of dimethyl oxalate is C4H6O4. It
exists as a liquid between its pour point (52°C) and boiling
point (163.4°C). It is soluble in ethanol and ether and slightly
soluble in water. | | Chemical Properties | colourless crystals | | Uses | Dimethyl oxalate is used as an alternate fuel in the direct oxidation fuel cell. It is involved in the catalytic hydrogenation using Cu/SiO22ub> to prepare ethylene glycol. It is also used in the selective gas-phase hydrogenation catalyzed by Ag/SiO2 to get the corresponding alcohol. | | Synthesis Reference(s) | The Journal of Organic Chemistry, 24, p. 261, 1959 DOI: 10.1021/jo01084a633 | | General Description | Dimethyl oxalate undergoes Cu/SiO2 catalyzed hydrogenation to yield ethylene glycol. It undergoes selective gas-phase hydrogenation catalyzed by Ag/SiO2 to yield corresponding alcohol. | | Purification Methods | Crystallise the ester repeatedly from EtOH. De-gas it under nitrogen at high vacuum and distil it. [Beilstein 2 IV 1847.] |
| Dimethyl oxalate Preparation Products And Raw materials |
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